Violin gluing form



Jan. 31, 1933. c. J. AMUNDSN VIOLIN GLUING FORM 2 Sheets-Sheet l I Filed Apg. 29. 1931 Jan. 31, 1933.

C. J. AMUNDSON VIOLIN GLUNG FORM Filed Aug. 29, 1931 2 sheets-sheet v,2

Patented Jan. 31, 1933 UNITED v'si-ATES CHARLES JlAMUN'DsoN, onossnqwrsoolsriv l A vIoraN cLUING" Forum apiicauqn Amea August 29,1931. serial No.A 560,161;` V

" This invention relates tolgluing formsfor violins, and has for one of its objects'to pro vide a novel device of this character through the medium of which a perfectly shaped violin may be-built in a vcomparatively short time and with comparatively little effort. y

With the foregoing and other objects in view, the nature ofv which will appear as Vthedescription proceeds, the invention consists 1n the construction, combination and-arrange-V ment yof parts hereinafter fullydescribed and claimed, and'illustrated in the accompanyino' drawings, wherein:-' v 1 i igure 1 is a viewin side elevation of a vio.-

5 lin gluing form .constructed-in accordance `with my invention, the sides, back and neck of the violin being shown .by broken lines inf A Figure 5 isa sectional view on an enlarged scaletakn on the plane indicated by the line -5-5 ofv Figure 2. a

Figure 6 is a sectionaly view taken ont-he plane indicated by the line 6,-6of Figure 5.

of the clamp)l Figure 7 is a planview of one blocks of the form, and` r f Figure 8isa sectional, view illustrating a slightly modified formof the `means'by which the violin corner blocks are secured to the form.V y The form comprises a'body 1 havingcon? 49 "Vex upper and lower edge portions 2 and 3,

` Thebodyl is provided opposite itsconcave' respectively, concave side or intermediate edge portions 4, and shoulders 5 located .between the convex and concave edgei portions.` Due to its convex edgeportions 2 and 8 and con-.

cave edge portions 4, the body 1 hasa con tourvsimilar to thatof the body of a violin.

edge portions 4 with openings 6, and `is pro- "vided opposite its shoulders 5 with openings 7 -Thebody 1 is provided inits upper end vex edge: portions 2- andzf with `airecfess 8 andv in .its lowertend with a p recess. 9% and] iS` provided opposite "its conwith openingsdo and 11, respectively, u Y y f The Y body 1-e consists, of4 two l,longitudinal `55 Y sectionsla and 1b which laresimilar and whichA are. secured together withtheirinner Y edges in relatively spaced relation. ;'l"rans verse bars r12fare employed to secure the body sections la and 1b in Vassembled relation, and Y aresecu'red to the sections by'screws 13. y The bodyisections 1a and lb areprovidedgwith.

transverse ,grooves l14"for the reception of.

the bars-112,"V and the' bars areprovided, bei tween their ends with-lugsor' extensions-15 which are located between'y the bodyi sections.

The body sections I10u` and 1b are iprovided withscrew threaded recesses v16 .for therecepfv i tion of the screw 13, andthe bars 12-.are provided with openings imhroughwhich the 7 screws freely pass. l .l Y The recesses 14 ofthe body'sections lia and 1b, and thelugs 15 of the :bars 12, cause'fthe bar openings 17 tov register with the `bodfy'secsections and-bars to be'assembled andsecured together` easily and quickly. v A longitudinal ,bar 18Vis secured to the transversebars 1 2` i and extends above the upper end 'of the body s tion recesses 16 onlthe assembling ofthe body 5 sections `and bars, yand thus adaptfthegjbody 1, and the extensionlSathereof is inclined similar vto.- the neck of a violin@ AThe longitudinalbar 18` is secured-to the, transverse bars: 12 lby screws 19 which pass freelyV through openings 20 of the longitudina1;bar.

'and engage in screw *threaded recesses 21'in the transverse bars. The*transverse bars 12 .and the longitudinal bar 18l are provided with interengaging recesses 22and 2.3, respectively, which enable the longitudinal'V bar] to be 1 re'adily'placed upon :the transverse barsin a Imanner to register the open-ingsi20 lwith,tl`1'e` recesses 21.V `'llhe recesses 14,.-22and-23fand 1a and 1?),the'transverse bars 12, and the .-thevlugs 15 not only permit the bodyl sections Y Y Y longitudinal bar.u 18 t0` be readily 1 assembled VVand securedtogether but also materially aid the `screws 13 and 19 in holdingkthese parts firmly in assembled relation. ,Tkhe-longitudif` nal barportion 18a is providedyvth recesses 19p Vtend transversely of this bar portion.

24vforthe reception of clamps 25 which ex- The recesses 24 are large enough to permit the clamps 25 to be adjusted longitudinally on thebar portion 18a. Screws 26 engaged with the,r clamps 25, and passing through slots formed Ain and extending longitudinally Voi the barportion 1'8a,'function to secure tho clamps to this bar. portion for adjustmentlongitudinally thereof, and are adapted to'y be turned up to secure vthe clamps lir'ijtheir adjusted position.

The clamps 25are provided withrecessesv r Y 28 for the receptionwof the lateral,sidesofy thefbar portion 18a, and with recesses 29 for Y l'the' reception .of `the .neck of a Aviolin,the

-upper-block 3'1. ofthe violin positioned-'in the lrecesses 281establishing such a connection bethe clampsltoholdfthe'violin neckagainst any cured to Athelbar 18 byrtheclampsr25 Iwith'the Arecess of thegform.vv The upper.v sidesg32 of ithe violin are then applied to theneck 130, the-block landftheiupper convexl edge 21o-f theform. The lower block 33 oftheviolin is. v'then positionedlin gthefrecess 9 of 'the storm," tandY thereafter the lower sides 84 ofthe violin 'are appliedto Fthe block 33 and the lowercon-` AVex edge?) of the form. yfllheeorner-blocks 35 ofthe-violin are secured tothe shoulders 5"of Jthe formthroughy the medium aof adjhesive paper strips''andthereafter the short center sides 37- of the eviolin are'l; applied to thewcon'vex edge portion 4A of thefo'rmand` to-theblo'cks. Thelblocks 31,33 andV 35 are Aprovided-with gluefprior to the application of the violin sides thereto. The ,upper sides 32 arefhe'ld on the,"form byeclamps Vwhich "en,- 1 lgagein the upper openingsr'andiin-the open- `Aings vv10, andY whichcontactj with these-sides', L

only one 1 of these 'clamps being shown and .'-desig'nated 38 and the centerzisengagedby a vclamp 39. Y The lower sides 34 areheld on the 1 'form by A clamps which'engage in the lower V openingsfand infthe'openingsll, and which contact with Vthe side`s1onlyk two f lof these clamps "beingshown and designatedfLlO and 41, respectively.4

V`Theclamps 38 Y40V arel provided with Vblocks 42 lwhichengager the sides 32-and134 oppositethegcornerblocks 35, and the clamp '41islprovided' with .a block 43 which engages jthesid'es 34 oppositethe lowerfblocl;V 33.V The 4lside's'g Vare held 'on-the* {forin blocks. 44

iwliich Y engagefthe sides oppositefthe corner Ybl'ocks' 35, "and by'bars 45V positioned between thejfblocksf l44. `Priorlto the application of the {sides-*#32534 and-137 'to the forjfn, paper i,ee5,743

strips 46 are applied to the edges oit' the ritorni, and have their edges bent into contact with theopposite lfaces of the'body 1, as shown in Figure 3. After the application of thev sides 32, 34 and A37, the linings 47 of the Violin are glued to the sides, and after the appli cation of the linings, the back-48 is, glued to thesides, the-paper stripsr preventing the adhering of the linings tof the form. The body 1 has a thickness lessthan the depth ofthe Vsides-32,34 and 37 inlorder-to permitthe linf ings 47 to be applied to the'sides.,V The trans- Mverse bars 12 and the longitudinal bar 18 are applied to the rontside of the body 1 in order'to V*pei/mit the-back 48 to beV applied to the sides. Tore-move the l'assembled parts of the*l violin from thel form, the screws 13 and 19 are withdrawn, and thefscrews 26 loosened.

Afr-ter .this has been done, theclamps 25 whichv were moveddownwardly on theviolinneck v V to retainv it in placev aremo'ved outwardly-1 c onthe neck, and afterthis has been done-'the barslS andy 12 are removed from' thebody '1. I .The removal. of the bars from thebody 1 frees, the bodyr sections` la and. 1b formovei I :ment towardV each other, andthe body thus contracted lmay bev readily'withdrawn. from` the assembledsidesand-back of the violin Arterien@ Withdrawnof theform, ure-topqf Y r the y,violin is'securedl in:v place. r q x The .adhesive strips 36 `4enable the corner blocks 1 35 to bereadily ltreed from the form. The form may becmadeztrom wood or metal.

llVhenma-de from wood the corner blocks p will be secured thereon by the adhesive strips 36, and when the formv is y'madeffrom'metal the corner blocks will be secured theretoby .Y

yscrews49,as illustrated in ITigureS.'4

` Y While 'I have described the principleof `the K,

invention, together withv the structurewhich L" Inow consider :the preferredl embodiment thereof, it isto be understood that the structure V'shown is `merely killustrative andgthat such y changes may be made, when desired, as

Vfall `within ,the scopey of the inventtion;v Yasy l. 1.- A gluing form for the4 upper,lower center sides, the upper, lower andv corner blocksV and the neekof` aviolin,y comprising vabodyhaving eonveX upper' andV lower edge portions and concaveside .portionsrto which Y lower blocks, andthe body fbeing provided between yits *convexI edgeportions and concave side portions with shoulders,fmeans .for

removably securing the ,cornerfblocks to the Y,

shoulders', clamps for, holding they sideslin place, and vmeansk carried bythe body and i ,exi-ending` outwardlyv therefrom for Yholding theneck. f l* Y Y '2, 'A gluingfform fortheupper, lo'wer'fandv centersides,the upper,lower andcorner blocks c the, sides are to be applied, vthe body being Y provided'at its upper and lower ends with e, vrecesses kforthe reception of the upper and concave side portions with shoulders, meansY Lasagne fand the neck of a violin; comprising a body having convex upper and lower edge portions and concave side portions to which the sides are to be ap lied, the body being provided-at its upper an lower endswith recesses for the reception 'of the upper and lower blocks, and

the body being provided between its convex 'edge portions and concave side portions with shoulders, adhesive strips for removably se` curing the corner blocks to the shoulders,

clamps for holding the. sides in place, andy tween its convex edge portions and concave side portions with shoulders, and the body being provided opposite saidedge portions and shoulders with openings, means for re# movably securing the corner blocks tov the' shoulders, clamps engaged in said openings for holding thesides in place, means carried by the body and extending outwardly therefrom for holding the neck, and clamps positioned between the ends of the center sides.

,4. A gluingform for the upper, lowerand center sides, the upper, lower and corner blocks and the neck of a violin comprising a.V

sectional body Vhaving convex upper and lower edge portions and concave side portions to which the sides are to be applied, the body y being provided at its upper and lower ends with recesses for the reception ofthe upper and lower blocks, and, the body being provided between its convex edge portions and removably secured to the body sections for holding. them in assembled relation with their inner edges in spaced relation, means for removably securingthe corner blocks to the shoulders, clamps for holding the Asides in place, and means carried by the body and extending outwardly therefrom for holding the neck.

5. A gluing form for the upper, lower and center sides, the upper, lower-and corner blocks and the neck of aviolin; comprising a sectional body having convex upper and lower edge portions and concave side portions to which the sides are to be applied, the body being provided at its upper and lower ends with recesses for the reception `of the upper and lower blocks, and the body being provided between its convex edge portions and concave side portions with shoulders,

bars removably secured to the body sectionsv :for holding them in assembled relationwith their inner edges in spaced relation, the bars i being recessed into' the body'sections and profW vided :with lugs positioned 'between thejinner edges .of ,the sections," means lfor .l removably securing Vthe corner blocks toA the "shoulders,

clamps for.' holdingtheI sides place,- fand means carried by the body and extendingoub wardlytherefromfor holding the neck.

' 6. A gluingjform fortheupper, lower and g center sides, the upper, lower and corner blocksI and theE neck of a` violin; comprising a sectionalbody havingpconve'x upper and lower' edge portions 'and concave side portions to which the sidesV are to be applied,`the body being provided at its upper and lower ends with recesses for the reception of the` upper and lower blocks,y and the body being provided betweenits convex edge portions and concave vside portions withshoulders,

means removably securedto the body sec,- tions for holding them in assembled relation with their inner edges spacedfrelationf means orremovably securing the corner blocks to the shoulders, clamps for holdingV the sides in place, a bar secured to saidfiirst j 5 means and extending longitudinallyvbeyon'd the upper end of the body, and clam s carried by the upper end `portion of said. ar for Y i engagement withthe neck.

7. A gluing form for the upper, lower andv center sides, the upper, lower and cornery blocks and thenecko a violin; comprising ,Y

lower edge portions and concave sidev por tions to which the sides are to be applied, the vbody being provided at its upper and lower Va sectional body having convex upper and ends with recesses for the reception of the 7 upper and lower blocks, and the body being. provided between its convex edge portions Y and concave side portions with shoulders, m5 tions for holdingthem in assembled relation means removably secured to the Vbodyfsecwith their inner edgesin spaced relationy means for removably securing the corner blocks to the shoulders, clamps for holding the sides injplace, a neck ysupporting bar,`

clamps supported outwardly of the bodyhav-` ing recesses for the reception of the neck,

and means securing the latter clamps tothe Vupper end portion of said bar for adjustment longitudinally thereon.`

8. A gluing form for the upper, lower and y centerV sides, the upper, lower and corner. Vblocks and the neck of a violin; comprising a sectional body having convex upper and lower edge portionsand'concave side portions to which the sides are to be applied,.the

izo

body `being provided at its upper and lower l ends with recesses for thereceptionof the up.-

yper and lower blocks, and thebody being li525 provided between4 its convex edge portions and concave siderportions with shoulders, transverse bars renrovably secured. to the Vbody sections for holding them inassembled relation with their inner edges in spaced relar tion, the bars being recessed into the body 

